Grab-and-go missions to asteroids have provided some of the most scientifically valuable samples since the Apollo ...

As this interstellar object approached its closest point to Earth, a massive radio telescope attempted to sniff out a ...

It is unclear whether a [3I/ATLAS] would transmit radio signals … such signals would take tens of thousands of years to cross ...

From Viking to Perseverance, scientists have spent decades chasing chemical hints that could point to life beyond Earth.

A new paper posits that advanced alien civilizations may communicate through subtle flashes, like fireflies do on Earth. The ...

It's one of life's biggest questions - are we alone in the universe? Now, one of Britain's top space scientists has declared she is 'absolutely convinced' there are aliens out there ...

Polling shows that nearly half of Americans now believe aliens have visited this planet—and that the number who aren't sure ...

A new study referencing a past NASA Cassini observation found the presence of 'slushy tunnels' in Saturn's largest moon Titan ...

The afternoon of 7 August 1996 isn’t a time that sticks in many people’s minds. But if things had worked out differently, it might have been etched into our collective memory. At 1.15pm, US President ...

Machine learning is quietly rewriting the rules of the cosmic hunt for company. Instead of waiting to recognize familiar ...

Europa has a vast, saltwater ocean beneath its icy shell, with more than twice the amount of water in all of Earth’s oceans ...

In the many decades of NASA exploration, there has only been one detection that got on that scale. It was collected by the ...